Owner's manual

Installation and Configuration 269
Line supervision on E1 failure
This setting determines in what state all 30 LEI ports appear to the CS
1000E, CS 1000M, and Meridian 1in case of E1 failure. Ports can appear
as either in the "on-hook" or "off-hook" states on E1 failure.
Note:
All idle LEI lines go off-hook and seize a Digitone Receiver when
the off-hook line processing is invoked on E1 failure. This may prevent
DID trunks from receiving incoming calls until the LEI lines time-out
and release the DTRs.
Daisy-Chaining to MMI
If two or more LEIs are installed and the MMI used, daisy-chain the cards
together to use one MMI terminal or modem. Make the selection for this
dip switch position based on how many LEIs are being installed.
MMI Master or Slave
This setting is used only if daisy-chaining the cards to the MMI terminal or
modem. It determines whether this card is a master or a slave in the daisy
chain. Select the master setting if there are no LEIs between this card and
the MMI terminal or modem. Select the slave setting if there are other
cards in the daisy chain between this card and the MMI.
Table 101 "LEI card - Switch 1 dip switch settings" (page 269) through
Table 103 "LEI card - XPEC address dip switch settings (Switch S1,
positions 3-6)" (page 270) show the dip switch settings for Switch 1. Table
104 "LEI card - E1 Switch 2 (S2) dip switch settings" (page 271) shows
the dip switch settings for Switch 2.
Table 101
LEI card - Switch 1 dip switch settings
Characteristic Selection
Switch
Position
Switch
Setting
Factory
Default
MMI port speed selection 1200 baud
2400 baud
1
1
ON
OFF
OFF
E1 signaling Ground start
Loop start
2
2
ON
OFF
OFF
IPE Shelf address for LEI Table 103 "LEI
card - XPEC
address dip
switch settings
(Switch S1,
positions 3-6)"
(page 270)
3
4
5
6
Table 103 "LEI
card - XPEC
address dip
switch settings
(Switch S1,
positions 3-6)"
(page 270)
OFF
OFF
OFF
OFF
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.